How can you get a packet of cake mix wrong
OK
Get some eggs and smash them
Bash in some almonds, sugar and cocoa (make up the quantities if you can't read scales)
SLap in some Baking Powder and Bicarb of Soda
Mix it up with yer paws like
Bash an orange to bits and mix that in (jump on it if necessary)
Bung it in a hot oven till it looks like a cow pat (Hint: you need to put it in a cake tin)
Eat it (let it cool down a bit first, like)